Given slowness, is Ultra Secure necessary for bit-perfect rips?

I am ripping with C2 pointers enabled in Ultra Secure mode, but it is taking around 30 minutes for a 60-minute CD. Is Ultra Secure causing the slowness? Is Ultra Secure necessary for a bit-perfect rip? Thanks.

Re: Given slowness, is Ultra Secure necessary for bit-perfect rips?

If the CD is not in the AccurateRip database, then Ultra Secure is the only possibilty to get a verified result, even though this verification is only based on the checksums of your own repeated readings.